Did Ian Ziering Start the Fight with Those Mini-Bikers?

FULL STORY:  New video shows that Ian Ziering was the first one to get physical in his brawl with that mini-bike “gang” on Sunday.  In the video, you can see the bikers drive around Ian’s car while it’s stopped in traffic, then get in front of it.

That’s when Ian gets out and lunges at one of them.

TMZ spoke to two of the riders, and they say the attack was completely unprovoked.

According to them, they were splitting lanes, which is totally legal in California . . . and maybe Ian got angry because he thought they were getting too close to him.

They also suggested he may have been having a bad day and decided to take it out on them.

(TMZ)